Surgical instrument with multi-phase trigger bias
US9089327B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2012 |
| Grant date | Jul 28, 2015 |
| Priority date | — |
| Expiry date | Jun 6, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/1455
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus comprises an end effector, an elongate shaft, and a handle assembly. The end effector is operable to grasp tissue. The elongate shaft extends between the end effector and the handle assembly. The handle assembly comprises a body portion, a trigger, and a trigger return lever. The trigger is movable relative to the body portion from a home position to an actuated position, and is thereby operable to control the end effector to selectively grasp tissue. The trigger includes a cam feature. The trigger return lever is positioned to engage the cam feature of the trigger. The trigger return lever is configured to bias the trigger toward the home position during at least part of a range of motion of the trigger from the home position to the actuated position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.